Allen Brothers 20MM Dynamic Single Swivel
Availability: Please contact us to confirm availability or discuss item replacements. Please note that certain products may have an estimated arrival time of 30 days and are not available for expedited shipping.
Pickup available at 1830 East Interstate 30
Usually ready in 24 hours
Shipping and Delivery
Free shipping for orders of $98 or more (US Continental)
- Free shipping for orders of $750 or more (International)
- Add 3 business days to the standard shipping time for USPS deliveries.
- UPS and FedEx Ground usually take 2 to 5 business days for in-stock orders.
- UPS and FedEx deliver on Saturdays only for Friday overnight shipments, which may incur an extra
charge. - Orders that apply for free shipping will be delivered between 8 and 10 business days.
- International customers will be responsible for any applicable import duties,fees, or taxes.
- Oversized items like whisker poles, spinnaker poles, and tracks over 7 feet require freight shipping, with an estimated cost of $500 depending on the destination.These orders must be delivered to a
commercial address, such as a marina, yacht club, or boatyard where your sailboat is located.
A recipient must be present to sign for the delivery upon arrival,For more info, Click Here.
Single With Swivel Head
20mm Single With Swivel Head Dynamic Block.
The A2020 is our go-to low friction, fast rolling, small pulley. It?s lightweight and strong, making it ideal for dinghies, windsurfing, kitesurfing and anything else that runs smaller diameter lines.
Our Dynamic range is generally the best choice for applications that require constant sheave movement.
Swivel Head ? A built-in swivel pin allows this block to swivel once attached. ideal for applications where the pulling forces may change direction. The swivel cannot be locked.
Bearings ? Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail.
Becket ? Our 20 & 30mm blocks offer a large central rivet which not only reduces the overall weight but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.

